斜锚桩与抗滑桩联合支挡结构的力学行为分析

摘要

Combined with the finite element software ANSYS and the strength reduction method,the slope reinforced by combined retaining structure of the inclined anchor pile and the anti slide pile were analyzed by 3D numerical analysis.The slope stability coefficient was calculated and the stability of the slope was evaluated before and after the reinforcement.The characteristics of force and deformation were discussed. The results show that using reinforced concrete inclined anchor pile instead of anchor cable or anchor,it can assist the anti-slide pile offer a certain level of resistance,and resist the vertical deformation and enhance the slope stability.%运用 ANSYS 有限元软件，结合强度折减法原理，对斜锚桩与抗滑桩联合支挡结构加固边坡进行三维数值分析，计算了支护加固前后的边坡稳定系数并进行稳定性评价，分析了联合支护时结构受力和变形的特点。计算结果表明：使用钢筋混凝土斜锚桩代替锚索或锚杆，既能协助抗滑桩提供一定的水平抗力，又能抵抗竖直变形，增强边坡稳定性。